Pencil-sharpener



(No Model.)

2 sheets-'fsheet 1. P. E. SALIN. PENCIL SHARPENER.

Patented May 19, 189,6

ANDRDN EGRMAM. FHUTUUTNQWASHINGTOM. D C

(No Model.) 2 Sheets-sheet 2.

` y P. E. SALIN.

{ PENCIL SHARPENER.

No. 560,304. Patented May 1896.

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UNITED STATESv PATENT OFFICE.

PETER E. SALIN, OF CHICAGO, ILLINOIS.

PENCIL-SHARPENER.

SPECIFICATION forming part of Letters Patent No. 560,304, dated May 19, 1896.

Application filed September 25, 1895.

To all whom it may concern.'-

Be it known that I, PETER E. SALIN, a citizen of the United States, residing in Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Pencil-Sharpeners, of which the following is a speciication.

My invention relates to pencil-sharpeners- The object of my invention is to produce a pencil-sharpening machine of a simple, durable, and efficient construction by means of which pencils may be rapidly, conveniently, and perfectly sharpened.

The machine embodying my invention cornprises, in combination, the following parts or devices: a knife or cutter, a hollow conical guide for the tapering end of the pencil and to which the knife is preferably secured, a rotating chuck for holding the pencil in respect to the knife, a rotary emery-disk revolving approximately in the plane of the axis of the pencil for sharpening the lead of the pencil, a feeder or feed device for feeding the chuck and pencil forward as they revolve in contact with the emery-disk and knife, a swinging arm upon which the hollow conical .guide and the cutter are preferably mounted,

and a clamp or device for holding such arm in position.

My invention also consists in the novel construction and in the various novel combina'- tions and subcombinations of these parts and devices and other parts and devices herein shown Cand described, and specified in the claims.

In the accompanying drawings, forming a part of this specification, Figures l and 2 are side elevations of a machine embodying my invention, one looking from one side and the other from the opposite side. Fig. 3 is a plan view. Fig. Il is a detail section on the line et l of Fig. Fig. 5 is a section on the line 5 5V of Fig. l. Fig. G is an end view. Fig. 7 is a section onthe line 7 7 of Fig. 6. Fig. 8 is a detail bottom view showing the device for throwing the feeder in and out of gear. Fig. 9 is a section on the line 9 9 of Fig. 6. Fig. lO is a section on the line l0 10 of Fig. l. Fig. llv is a detail view of the pencil-holding chuck, and Fig.V l2 shows a supplemental holder for slate or other pencils of small diameter.

sain No. 563,577. (No model.)

Inv the drawings similar letters of reference indicate like parts throughout all the figures.

In said drawings, A represents the frame of the machine; B the knife or cutter, the same being placed in a diagonal or spiral position in respect to the aXis of the pencil or pencil-holder chuck.

C is the hollow conical socket or guide against which the tapering end of the pencil lits and to which the knife or cutter B is preferably attached by the screws b. The guide or socket C and the knife B are preferably mounted movably, this being done by a swinging arm C, pivoted at c on a screwthreaded pivot c', which serves as a vise or clamp to lock the swinging arm in operative position, or so that the guide or socket C is axially in line with the pencil or its holding chuck.

D is the pencil-holder or chuck, the same consisting, preferably, ofa sleeve furnished with a conical head d and a series of longitudinal slits 'd' to form the movable or spring jaws d2 of the chuck. The jaws of the chuck or pencil-holder are closed by the conical head climpinging against the tapering or conical interior face of the outer sliding rotary sleeve D'. The chuck orgholder D is prevented from rotating in the sleeve D by means of an interior pin or projection d3 on the sleeve, tting in one of the slots d of the holderD, which extends the full length of the holder D, in order to permit the holder D to be inserted in the sleeve D. The holder D is furnished with screwthreads d4 at its outer end, and it is reciprocated in respect to the sleeve Dl so as to loosen or tighten the jaws d2 against the pencil by means of a thumbnut D2. The sleeve D' is furnished with a longitudinal groove d5, in which iits an interior pin or projection e on the gear E, by which the sleeve D and the pencil-holder D are rotated, so as to permit the sleeve D and the holder D to slide or reciprocate to feed the pencil against the cutter B and the emery cutter or grinder F.

The grinder or sharpening device F for the lead of the pencil consists, preferably, of a rotating disk of emery or emery-paper. It is supported upon a metal disk vF', -slightly dished, beveled, or cone-shaped, the plane of which is arranged just below the axis of the IOO pencil or its holder B. The emery supporting disk or plate F is secured to an upright shaft f, which may be adjusted up and down to bring the emery-disk F into proper relation to the axis of the pencil-holder by means of a wedge f, which abuts against the lower end of the shaft f and which is moved by an adjusting-screw f2 and nut f3.

The feeder or device for feeding the pencil or its hold er D and the sleeve D forward consi sts, preferably, of a sliding or reciprocating rack Il, connected by an arm 7L with the sleeve D', the arm 7L having a collar 71. to connect with the sleeve and permit the sleeve to rotate. The feeder or rack H is reciprocated or moved forward by means of the feed-shaft Il', which has a gear 7b2, engaging with the teeth of the feed-rack II. The feed-shaft I'I itself is rotated automatically by means of a worm h3 on the driving-shaft K, engaging a worm-gear 7L'1 on the feed-shaft Il. The feedshaft II is thrown into and out of gear with the driving-shaft K by means of a lever G, which moves the lower end of the shaft sufficiently to cause the worm 7b3 and the wormgear 7L* to engage and disen gage. This lever is furnished with a spring G to move the end of the feed-shaft in the opposite direction. The gear-lever is locked in position by a pin or projection g, engaging a detent in the guard g. The feed-shaft II is further provided with a thumb-wheel H2 at its upper end, so that the feeding may be done by hand, when desired. 'Vhen the feed-shaft is thrown out of gear, the feed-rack may be returned to position by the feed-rack-returning lever or arm L, which is actuated bya spring L'. The driving-shaft K is furnished with a spur-gear K', meshing with an intermediate gear K2, that engages the gear E for rotating the sleeve D' of the pencil-holder D, and the driving-shaft K is furnished with a bevel-gear K3, that engages a bevel-gear f4 on the emery-disk-driving shaft f, so as to rotate the emery-disk. The driving-shaft K is rotated by a crank K", secured, preferably, to the gear-wheel K3.

M is a supplemental pencil-holder split sleeve adapted to be inserted in the holder D for receiving slate-pencils or other pencils of small diameter. The supplemental pencilholding split sleeve M is made of about the size or diameter of an ordinary pencil, so that it may be inserted like a pencil of ordinary size in the holder D. The hole or bore in this split sleeve M is of a size to fit an ordinary slate-pencil or lead-pencil of small diameter. The supplemental pencil-holdin g sleeve M operates simply as a split bushing to diminish the bore of the holder D.

N is a curved rod which may be used for expelling short pencils from the chuck or holder D.

The operation is as follows: The pencil being inserted in the holder D, the jaws of theA holder are tighten ed on the pencil by turning the thumb-nut D2. The gear-controlling lever G is then `moved to throw the feeder-shaft II in gear with the driving-shaft K. The operator then, by turning the driving-shaft by the crank, causes the pencil in the holder to rotate on its own axis and at the same time feed slowly forward, bringing the wood of the pencil in contact with the cutter B and the lead or point in contact with the emery disk or grinder F, thus quickly, easily, and perfectly sharpening the pencil. When it is desired to sharpen slate or other pencils by use 0f the grinder F alone, without the aid of the knife or cutter B, the vise or screw c is looscned and the arm C', carrying the knife I3, is turned or swung to one side, so as to be out of the way.

l. In a pencil-sharpener, the combination with a stationary knife or cutter, of a rotary pencil-holder and a rotary grinder-disk revolving on an axis at an angle to the axis of the pencil-holder, substantially as specified.

2. In a pencil-Sharpener, the combination with a knife or cutter, of a hollow conical. guide to which the knife is attached, a rotating pencil-holder, and a rotating grinder revolving at an angle to the axis of the pencilholder, substantially as specified.

In a pencil-Sharpener, the combination with a knife or cutter, of a hollow conical guide to which the knife is attached, a swinging arm upon which said knife and guide are mounted, a rotating pencil-holder, and a rotating grinder revolving at an angle to the axis of the pencil-holder, substantially as specified.

4. In a pencil-Sharpener, the combination with a stationary knife or cutter, of a rotary pencil-holder and a rotary grinder-disk revolving on an axis at an angle to the axis of the pencil-holder, and a feeder for feeding the pencil-holder forward as it rotates, substan' tially as specified.

5. In a pencil-Sharpener, the combination with a knife or cutter, of a hollow conical guide to which the knife is attached, a rotating pencil-holder, a rotating grinder revolving at an angle to the axis of the pencilholder, mechanism for rotating the pencilholder, and means for feedingthe pencil forward as it rotates, substantially as specified.

6. In a pencil-Sharpener, the combination with a stationary knife or cutter, of a rotary pencil-holder and a rotary grinder-disk revolving on an axis at an angle to the axis of the pencil-holder, a feeder for feeding the pencil forward as it rotates, and a lever or device for throwing the feeder or feed mechanism in and out of gear, substantially as specified.

7. In a pencil-Sharpener, the combination with a stationary knife or cutter, of a rotary pencil-holder and a rotary grinder-disk rcvolving on an axis at an angle to the axis of the pencil-holder, a feeder for feeding the pencil forward as it rotates, a lever or device for throwing the feeder or feed mechanism in ICO IIO

and out of gear, and a spring-actuated lever or device for returning` the feeder to position, substantially as specified.

8. In a pencil-sharpener, the combination with a stationary knife or cutter, of a rotary pencil-holder and a rotary grinder-disk revolving on an axis at an angle to the axis of the pencil-holder, and means for adjusting the grinder-disk in respect to the axis of the pencil-holder, substantially as speciied.

9. In a pencil-Sharpener, the combination y' with a knife or cutter B, of a rotating and reciprocating pencil-holder, means for rotating said pencil-holder, means for reciprocating said pencil-holder to feed the pencil forward against the knife, and a hollow conical socket or guide C, substantially as specified.

lO. In a pencil-Sharpener, the combination with a knife or cutter B, of a rotating and reciprocating pencil-holder, means for rotating said pencil-holder, means for reciprocating said pencil-holder to feed the pencil forward against the knife, a hollow conical socket or guide C, a swinging arm C', and a clampscrew or vise for locking the swinging arm in position, substantially as specified.

ll. In a pencil-Sharpener, the combination with knife B, of rotating pencil-holder or chuck D, reciprocating and rotating chucksleeve D', feed-rack H, and arm h connecting said feed-rack and chuck-sleeve D', substantially as specified.

l2.- In a pencil-Sharpener, the combination with knife B, of rotating pencil-holder or chuck D, reciprocating and rotating chucksleeve D', feed -rack H, arm 71, connecting said feed-rack and chuck-sleeve D', and feed-shaft H' furnished with a gear meshing with said feed-rack H, substantially as specied.

13. In a pencil-Sharpener, the combination with knife B, of rotating pencil-holder or chuck D, reciprocating and rotating chucksleeve D', feed-rack H, arm h connecting said feed-rack and sleeve D', feed-shaft H furnished with a gear meshing with said feedrack H, the driving-shaft and a Worm and gear connecting the feed-shaft and drivingshaft, substantially as specified.

14:. In a pencil-Sharpener, the combination with knife B, of rotating pencil-holder or chuck D, reciprocating and rotating chucksleeve D', feed-rack H, arm h connecting said feed-rack and chuck-sleeve D', feed-shaft H' furnished with a gear meshing with said feedrack H, the driving-shaft, a worm-gear connecting the feed-shaft and driving-shaft, the lower end of the feed-shaft being mounted movably, and a lever or device for throwing the Worm-gear in and out of engagement, substantially as specified.

PETER E. SALIN.

Witnesses:

H. M. MUNDAY, EDMUND ADcooK. 

